(19)
(11) EP 3 018 663 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
10.08.2016 Bulletin 2016/32

(43) Date of publication A2:
11.05.2016 Bulletin 2016/19

(21) Application number: 15184536.9

(22) Date of filing: 09.09.2015
(51) International Patent Classification (IPC): 
H01F 1/059(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA

(30) Priority: 09.09.2014 JP 2014183705
12.05.2015 JP 2015097526

(71) Applicant: Toyota Jidosha Kabushiki Kaisha
Toyota-shi, Aichi-ken, 471-8571 (JP)

(72) Inventors:
  • SAKUMA, Noritsugu
    Aichi-ken, Aichi 471-8571 (JP)
  • KATO, Akira
    Aichi-ken, Aichi 471-8571 (JP)
  • WASHIO, Kota
    Aichi-ken, Aichi 471-8571 (JP)
  • KISHIMOTO, Hidefumi
    Aichi-ken, Aichi 471-8571 (JP)
  • YANO, Masao
    Aichi-ken, Aichi 471-8571 (JP)
  • MANABE, Akira
    Aichi-ken, Aichi 471-8571 (JP)
  • ITO, Masaaki
    Aichi-ken, Aichi 471-8571 (JP)
  • SUZUKI, Shunji
    Fukuroi, Shizuoka 437-8555 (JP)
  • KOBAYASHI, Kurima
    Fukuroi, Shizuoka 437-8555 (JP)

(74) Representative: D Young & Co LLP 
120 Holborn
London EC1N 2DY
London EC1N 2DY (GB)

   


(54) MAGNETIC COMPOUND AND METHOD OF PRODUCING THE SAME


(57) Provided is a magnetic compound represented by the formula (R(1-x)Zrx)a(Fe(1-y)Coy)bTcMdAe (wherein R represents one or more rare earth elements, T represents one or more elements selected from the group consisting of Ti, V, Mo, and W, M represents one or more elements selected from the group consisting of unavoidable impurity elements, Al, Cr, Cu, Ga, Ag, and Au, A represents one or more elements selected from the group consisting of N, C, H, and P, 0≤x≤0.5, 0≤y≤0.6, 4≤a≤20, b=100-a-c-d, 0<c<7, 0≤d≤1, and 1≤e≤18), in which a main phase of the magnetic compound includes a ThMn12 type crystal structure, and a volume percentage of an α-(Fe,Co) phase is 20% or lower.







Search report









Search report